CLASSIFICATION AND HABIT8 ok ticks. 
53 
and //. conc'iniKt , hut Banks informs us thai be lias not round the 
latter in this country. He recognizes H. chordeilis Packard as the 
form occurring in the eastern United States. 
A South African species, //. leachi, has been determined by Louns- 
hury to transmit malignanl jaundice of dogs. 'The larva and nymph 
both drop from the host to molt. Both engorge quickly, sometimes 
in less than is hours From the time they attach; usually, however, 
remaining from 65 to 75 hours. 
RABBIT TICK. 
/ /.■/ ma pin/sal is It poris-pal ustris Packard). 
Synonym: Gonixodes rostralis Duges. 
Packard described this species (see figs. 7, 8, and PL III, fig. 2) in 
1869 from a female specimen collected at Fort Macon, N. C, on a 
Fig. 3. Hzmaphysalis leporis-palustris: Coxae of 
maleand female. Greatly enlarged (original). 
rabbit, Lepus palustris. Marx 
reported the species as quite com- 
mon in Kansas, Texas, and Cali- 
Pio. 7. Hxmaphysalis leppris -palustris: Capit- forma. Dr. Cooper Curtice has 
alum and scutum of female, dorsal view, taken an engorged female from a 
Greatly enlarged original . , • m i • * 1 1 1 
horse m Lexas, and it has been col- 
lected in Mexico, the host not being, given. Neumann mentions an 
engorged female m the museum of Paris labeled "from Brazil" and a 
